Headwear accessory mounting clip

ABSTRACT

A clip for mounting devices on a hat brim includes a first and second panel. The panels are each resiliently connected to a nose portion and separated by a spacing that tapers to a contact point from the distal portions of the panels to their proximal portions. The second panel has a wedge-shaped portion in which the width of the panel increases from its distal end to its proximal end. The bottom surface of the first panel is concave, the preferable concavity being close to that of the curvature of a hat brim. The top surface of the second panel is convex. The preferable convexity is close to that of the curvature of the brim. The top surface of the second panel includes a channel adapted to receive the fabric border of the undersurface of a hat brim. The top surface of the first panel includes at its proximal end structure adapted to receive an accessory device.

CROSS REFERENCE TO RELATED APPLICATION

This application is a continuation of U.S. patent application Ser. No. 14/921,719 filed on Oct. 23, 2015, the entire contents of which application are incorporated herein by reference.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable.

SEQUENCE LISTING, TABLE OR COMPUTER PROGRAM ON COMPACT DISC

Not applicable.

FIELD OF INVENTION

This invention relates generally to accessory mounts and more specifically to those mounts intended for attachment to headwear.

BACKGROUND OF THE INVENTION

The deployment of a headlamp positioned in the vicinity of a user's forehead is a long-known technique to provide hands free lighting when needed. One technique for deploying such hands free lighting is to attach a headlamp to elastic bands that can circumscribe a user's head or helmet. An exemplary prior art accessory mounting band is shown in FIG. 11A. The elastic bands retain the light or lamp against the forehead while the user engages in a desired activity. This elastic band technique has also been used for deploying small, point-of-view cameras, such as the Go-Pro brand camera, on a user's head, hat or helmet. Many users eschew the elastic band mounts because of a variety of reasons, including vanity and discomfort.

Other techniques for deploying an accessory such as a light or point of view (“POV”) camera involve attaching a mounting apparatus that is adapted to receive the light or camera to a baseball cap. The currently available mounts intended to attach to a baseball cap come in a variety of structural configurations. They all, however, suffer from a wide array of deficiencies. For example, one style of mount requires that the brim or bill of the hat be pierced. This prior art technique is shown in FIG. 11B. In this style mount, the accessory-receiving portion of the mount attaches to a post that pierces through the hat's brim. This type mount is undesirable because it physically deforms the subject cap in permanent fashion. Also, the hole through which the post is pierced can loosen with time, causing the mount to undesirably shake and wobble.

Other accessory mounts intended for attachment to the brim of a hat are known as well. Some mounts use an alligator clip arrangement that clips to the bill of a cap. With this type of mount, the alligator clip slides over the front of the cap bill and holds an accessory device either above or below the bill. An example of this prior art device is shown in FIG. 11C. The prototypical alligator clip is formed from two panels that are connected by a metal spring. The spring is positioned between the two panels and near one end of them. The interpositioned spring biases the panels so that their ends opposite the spring are forced into contact with each other. The inner surfaces of the panels are serrated in some form, assumedly on the assumption that such serration enhances the ability of the clip to grip whatever structure (e.g., cap bill) inserted between the two panels. Alligator clip mounts have several deficiencies which make their performance less than desirable for use with accessory devices. In one instance, the alligator clip is bulky and its portion that is positioned underneath the bill will provide a visual distraction or obstruction. Secondly, this type of clip focuses its gripping three and brim contacting surfaces at one end of the clip—the end not localized at the cap brim edge. As a result, alligator clip type mounts do not provide sufficient grip to keep a heavier device like a POV camera in place when the user is involved in any type of vigorous activity. During such activity the clip tends to slide transversely along the brim front causing the camera angle to change.

Some bill accessory mounts utilize as their bill attachment mechanism a molded plastic clip or formed metal clip. In contrast to the alligator clip mount that uses the three of a metal spring to urge to panels to a point of contact, this type of clip eschews the metal spring in favor of integrally molded or formed rigid panels resiliently connected at a meeting point. The clip attaches to a cap bill simply by pushing the cap bill between the clip's panels. Examples of this type of prior art mounting clip are shown in FIGS. 11D-11G. These types of clips are intended to hold onto the cap bill through some level of friction between the clip panels and the inserted bill. At best, these slip-on plastic or metal mounting clips work well with small, lightweight devices, like mini-LED lights, that mount below the brim of a cap (FIG. 11D). The currently available versions do not work well with heavier devices like POV cameras. In this respect the clips tend to slide across and off the cap bill because they: a) do not create enough clamping force with the bill; b) do not provide for sufficient frictional contact with the bill; or both. As a result, a user deploying one of the molded plastic or formed metal clips must restrict and monitor his or her physical movements so as not to move too violently and cause the POV camera to move or fall off the cap.

SUMMARY OF THE INVENTION

The preferred embodiment clip overcomes the deficits of the prior art and allows for the secure mounting of accessory devices on a hat brim. The device works particularly well when used to mount accessories on the brim (a/k/a bill) of a baseball cap. Such a brim typically has a front edge that has an edge (“front-to-back”) curvature of certain radius. The brim also has a thickness. The brim also has a transverse curvature (also known as a “bend”) of a certain radius. The preferred embodiment clip adapted for attachment to such a brim comprises a first panel and a second panel. The first and second panels respectively have a length, a width, a top surface, a bottom surface, a proximal end and a distal end.

The first panel and second panel each resiliently connect at their distal ends in general perpendicular fashion to a nose segment. The top of the nose segment is connected to the distal end of the first panel. The bottom of the nose segment is connected to the distal end of the second panel. The nose segment has a front-facing surface and a brim-facing surface. The top surface of the first panel includes mounting structure adapted to receive an accessory device such as a light or POV camera. This mounting structure is positioned on the first panel at the proximal end to ergonomically balance the mounted accessory.

Importantly and in contra-distinction to the prior art, the second panel has a wedge shaped portion in which the width of the panel increases from the distal end of the panel to the proximal end of the panel. This allows the bottom of the clip to cut into and frictionally engage the bottom of the hat brim due to the transverse radius of the hat brim. This frictional engagement increases the purchase of the clip against the hat brim.

Also adding to the friction-creating contact between the preferred embodiment clip and hat brim is the fact that the clip has a plurality of convex and concave surfaces. For example, in the preferred embodiment, the bottom surface of the first panel is concave. This concavity has a radius closely equal to that of the transverse curvature of the brim. This allows for increased surface contact with the top of the hat brim and hence an increased frictional hold. A second friction augmenting feature is the shape of the second panel. In this respect, the top surface of the second panel is convex. The convexity has a radius closely equal to that of the transverse curvature of the brim. A third friction augmenting feature is built into the nose segment, which in the preferred embodiment has a plurality of concave surfaces that can minor both the edge curvature and transverse curvature of the typical baseball cap. For example, in the preferred embodiment, the intermediate brim-facing surface of the nose segment is concave and the concavity closely approximates that of the transverse curvature of the hat brim. Additionally, at the distal end of the second panel, the top surface of the second panel includes a channel. This channel too can have a convex floor and sidewall. This channel serves to gather the stitched border of fabric that is found on the undersurface of the brim about the brim's perimeter. By receiving this fabric, the brim-holding ability of the clip is enhanced.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front perspective view of a preferred embodiment of the accessory mounting clip of the present invention.

FIG. 2 is a right elevation view of a preferred embodiment of the accessory mounting clip of the present invention.

FIG. 3 is a top plan view of a preferred embodiment of the accessory mounting clip of the present invention.

FIG. 4 is a front elevation view of a preferred embodiment of the accessory mounting clip of the present invention.

FIG. 5 is a bottom plan view of a preferred embodiment of the accessory mounting clip of the present invention.

FIG. 6 is a rear elevation view of a preferred embodiment of the accessory mounting clip of the present invention,

FIG. 7 is a side cross-sectional view of a preferred embodiment of the accessory mounting clip of the present invention taken along line A-A of FIG. 3.

FIG. 8 is a front cross-sectional view of a preferred embodiment of the accessory mounting clip of the present invention taken along line C-C of FIG. 2.

FIG. 9 is a front cross-sectional view of a preferred embodiment of the accessory mounting clip of the present invention taken along line B-B of FIG. 2.

FIG. 10 is a top plan cross-sectional view of a preferred embodiment of the accessory mounting clip of the present invention taken along line D-D of FIG. 2.

FIGS. 11A-11G depict exemplary prior art devices that are intended to attach to a user's head or the brim of a hat for purposes of mounting an accessory device.

FIGS. 12A-12B depict a typical baseball cap upon which the present invention clip may be attached.

FIGS. 13A-13D depict a preferred embodiment of the present invention clip mounted to the brim of a baseball cap.

FIG. 14 depicts an embodiment of the present invention clip having a thumb tab that includes an indicator display that alerts the user the operational status of a mounted accessory device.

FIGS. 15A and B depict an embodiment of the present invention clip having a device positioning stop that allows the user to establish a preset positioning setting on the clip for a given accessory device for repeatable, quick and easy deployment of the accessory device.

FIG. 16 depicts an embodiment of the present invention clip with a POV camera mounted to it, the clip being attached to a baseball cap.

FIG. 17 is a detailed view of the distal area of the clip shown in section view in FIG. 7. The detailed area shows the various convex and concave surfaces that can be included as part of the invention.

DETAILED DESCRIPTION

A preferred embodiment of the present invention accessory mounting clip 1 and its preferred constituent features are shown in FIGS. 1-10, FIGS. 13A-13D and FIGS. 14-17. For reference purposes the term “distal end” is used to refer to that portion of the clip or its components that are furthest away from a user's head when the clip is deployed on the brim of a hat. The term “proximal end” is used to refer to that portion of the clip or its components that are nearest the user's head when the clip is deployed on the brim of a hat. The preferred embodiment clip works particularly well when used to mount accessories on the brim (a/k/a bill) 71 of a baseball cap 70 such as is shown in FIGS. 12A and 12B. As shown in FIGS. 12A and 12B, brim 71 typically has a front edge 72 that has a front to back curvature of certain radius. Brim 71 also has a thickness 74. Brim 71 also has a transverse curvature or bend of a certain radius that is best discerned when looking at the cap head on.

As shown by the figures, clip 1 is springless, which distinguishes the clip from the alligator clip style mounting clips. Preferred embodiment clip 1 is adapted to attach to brim 71 by way of a pair of pinching panels 2, 3 between which brim 71 is inserted. Accordingly, clip 1 comprises a first panel 2 and a second panel 3. In common usage, first panel 2 is an upper panel and second panel 3 is a lower panel. First panel 2 and second panel 3 define space 80 into which a brim is inserted. First panel 2 and second panel 3 respectively have a length 7, 14, a width 8, 15, thickness 9, 16, a top surface 10, 18, a bottom surface 11, 17, a proximal end 6, 13 and a distal end 5, 12.

First panel 2 and second panel 3 each resiliently connect at their distal ends 5, 12 to nose segment 4. Nose segment 4 comprises a front facing surface 26 and a brim facing surface 27. Top 19 of nose segment 4 connects to distal end 5 of first panel 2. Bottom 20 of nose segment 4 connects to distal end 12 of second panel 3. Proximal end 13 of second panel 3 may be chamfered to better guide brim 71 into space 80 between panels 2. Front facing surface 26 may include a logo or brand name 41 printed or embossed thereon Likewise, distal end 3 of panel 2 may also include a logo or brand 41 name printed or embossed thereon.

Importantly and in contra-distinction to the prior art, second panel 3 has a wedge-shaped (a/k/a “delta-shaped”) portion 52 in which the width 15 of panel 3 increases from its distal end 12 to its proximal end 13. In the preferred embodiment, wedged-shaped portion 52 is formed by a pair of flaring side segments 21, each of which leads into a distal segment 22. In the preferred embodiment distal segments 22 are parallel to each other.

The angular arrangement of side segments 21 with distal segments 22 of wedge-shaped portion 52 of lower panel 3 create fabric-catching edges 64 that are forced into the relatively softer cloth surface of brim bottom surface 76 when clip 1 is deployed on a brim 71.

In the preferred embodiment distal segments 22 meet flaring side segments 21 at an obtuse angle. Edges 64 allow second panel 3 of clip 1 to cut into and frictionally engage the bottom 76 of hat brim 71 due to the transverse curvature of brim 71. This frictional engagement increases the purchase of clip 1 against hat brim 71.

As seen in the figures, first panel 2 and second panel 3 adjoin nose segment 4. First panel 2 and second panel 3 are separated along almost their entire lengths by vertical space 80. At the distal end of clip 1, the height of vertical spacing 80 dimension between first panel 2 and second panel 3 is roughly equal to thickness 74 of bat brim 71. As one moves from the distal end of clip 1 to its proximal end, spacing 80 decreases until panels 2, 3 make contact. Preferably, proximal end 13 of second panel 3 will touch panel 2 at a point about 75% of its length as measured from distal end 5. This decrease in spacing between panels 2, 3 increases frictional purchase of clip 1 against brim 71. The resilient connection of panels 2, 3 to nose segment 4 allows spacing 80 at the proximal end of clip 1 to increase via resilient deflection so as to receive a hat brim 71.

Also adding to the friction-creating contact between clip 1 and hat brim 71 is the fact that the clip can have one or more concave and convex surfaces that increase surface contact between the clip and hat brim. For example, as shown in the figures, bottom surface 11 of first panel 2 is concave. In the preferred embodiment, this concavity has a radius closely equal to that of transverse curvature of brim 71. This allows for increased surface contact between the top surface 77 of hat brim 71 and bottom surface 11 of panel 2 and hence an increased frictional hold. This increased frictional hold is augmented by the shape of second panel 3. In this respect, as shown in the embodiment shown in the figures, top surface 18 of second panel 3 is convex. The convexity preferably has a radius closely equal to that of transverse curvature of brim 71. This convexity may also be found in floor 31 of channel 30. Additionally, as best shown in FIG. 17, brim facing surface 27 of nose segment 4 may be concave in one or more dimensions. For example, constituent portions 27 a, 27 b and 27 c may have a front-to-back concavity that more preferably mirrors that of the edge curvature of edge 72. Constituent portions 27 a, 27 b and 27 c may also have a vertically oriented curvature to better receive the vertical curvature of brim edge 72. It is intended that these concave portions of nose 27 increase purchase against brim edge 72. Also, channel sidewall 32 is preferably formed in convex fashion to increase the hold of fabric border 79.

Preferred embodiment clip 1 includes cutouts 42 formed in proximal end 13 of second panel 3. Cutouts 42 reduce weight and allow proximal end 13 of panel 3 to flex more in relation to its distal end 12. This increased flexibility allows panel 3 to conform to the curvature of under surface 76 of brim 71 thereby increasing surface to surface contact between the clip and the hat brim.

As seen in the figures, top surface 10 of first panel 2 includes mounting structure 38 adapted to receive an accessory device such as a light or POV camera. Mounting structure 38 may be integrally formed in first panel 2 as shown in the figures or may be mechanically attached. Mounting structure 38 of preferred embodiment clip 1, shown in the figures is particularly adapted to receive the mounting structure of a GoPro brand POV camera. Other mounting structures may be used. Unlike some prior art accessory mounting devices that place the mounting structure at the distal end of the device, mounting structure 38 of the present invention clip is positioned at the proximal end 6 of first panel 2.

Preferred embodiment clip 1 can include one or more enhancements to increase its brim-holding power. For example, all or part of top surface 18 of second panel 3 may be texturized to increase friction with bottom surface 76 of brim 71. Such texturizing can involve application of a rubberized surface to top surface 18. Alternatively or additively, top surface 18 may include a knurled surface, a roughened surface, a surface with upward facing micro-points or a surface with rough fibrous surface texture. By texturizing all or part of top surface 18 the coefficient of friction between clip top surface 18 and brim bottom surface 76 is increased. In addition, second panel 3 preferably becomes more flexible (compared to the distal portion) near the widest portions, which allows second panel 3 to better form to the curvature of brim 71.

In a preferred embodiment, the width of second panel 3 at its proximal end is 1.5 to 2.5 times the width of the first panel at its proximal end. Tests of various iterations of the inventive clip 1 have shown that clip 1 offers optimal frictional purchase against brim 71 when the width 15 of second panel 3 at its proximal end 13 is approximately 2 times the width 8 of the first panel 2 at its proximal end 6.

The shape and structure of nose segment 4 have been shown to also significantly increase the ability of clip 1 to resist movement on the bill of a conventional baseball cap. For example, nose segment 4 connects in general perpendicular relation to each of the first and second panels 2, 3. This allows front edge 72 of brim 71 to be pushed flush up against brim-facing surface 27 of nose segment 4. To further increase the frictional purchase of clip 1 on brim. 71, distal end 12 of panel 3 includes a channel 30. Channel 30 has a floor 31 and a sidewall 32. Sidewall 32 rises to top surface 18 of second panel 3 at its distal end 12. The positioning of channel 30 relative to brim-facing surface 27 of nose portion 4 and the decreasing vertical space 80 between panels 2, 3 operate to force the proximal edge of fabric border 78 into sidewall 32, augmenting the frictional hold of the clip on brim 71. At the same time and also augmenting the frictional hold, brim edge 72 is forced into brim-facing surface 27.

The purpose of channel 30 will now be further explained. As seen in FIG. 12B, a typical brim of a baseball cap includes stitching 79 on the bottom surface 76 of brim 71. Stitching 79 defines a border 78 of cloth material between stitching 79 and brim front edge 72. This border 78 of cloth material (indicated by the cross-hatched area in FIG. 13D) typically has a width and an additional thickness. For a large amount of readily purchasable baseball caps, the width of cloth material border 78 falls within a range of 0.584 to 0.686 centimeters. Channel 30 is preferably sized to fall within that range. When clip 1 is fully seated on brim 71 such that brim edge 72 is in contact with brim-facing surface 27 of nose portion 4, border 78 of cloth material tends to drop in and be retained by sidewall 32 of channel 30. This retention of border material 78 by channel 30 increases the frictional hold clip 1 has on brim 70 particularly when channel 70 is constructed in the preferred embodiment as is immediately described. In this respect floor 31 of channel 30 connects to sidewall 32 in general perpendicular relation. Similarly, in the preferred embodiment sidewall 32 of channel 30 connects to panel 3 in general perpendicular relation at a corner 54. Corner 54 may include a bevel 55 to aid in insertion and removal of brim 71 from clip 1. Corner 54 digs into bunched fabric of border material 78 and assists in retaining clip 1 in a fixed position on brim 71.

As noted, channel 30 may be further enhanced such that floor 31 of channel 30 follows the convex contour (best seen in FIG. 4) of top surface 18 of panel 3 and is thus itself upwardly convex. The convexity of floor 31 has a preferred radius closely equal to that of transverse curvature of brim 71. Also, as can be best seen in FIGS. 7, 10 and 14 brim-facing surface 27 of nose segment 4 is preferably concave in the front-to-back direction and that concavity can have an optimal radius closely equal to that of the radius of the edge curvature of brim edge 72. This concavity in brim-facing surface 27 increases the surface area contact of clip 1 with brim edge 72. As with top surface 18 of panel 3, brim facing surface 27 may be texturized to increase its purchase on brim edge 72. Additionally, as is shown in FIG. 10, sidewall 32 is convex and the radius of the convexity is preferably closely equal to the radius of curvature of brim front edge 72. This convexity allows sidewall 32 to have a larger contact surface with bunched fabric border material 79.

Preferred embodiment clip 1 may include elongate ribs 46 on top surface 10 of panel 2. Ribs 46 add structural rigidity to first panel 2, which prevents it from twisting and flexing when the weight of an accessory item is applied to clip 1. In the depicted embodiment ribs 46 are longitudinally oriented on panel 2, but can be also be oriented transversely or diagonally on panel 2 to achieve a desired directional rigidity. Ribs 46 also serve as a rest stop or support for a camera or other device that can flip downward from mounting structure 38. Ribs 46 thereby protect the sensitive surfaces such as the lens surfaces of such cameras.

Users deploying POV cameras on their hats often find it difficult to know if their camera is properly positioned or angled to record the best scene. To remedy this problem clip 1 may include a position stop 57 on or operable with accessory mounting structure 38. Such an alternate embodiment clip is shown in FIGS. 15A and 15B, which show a stop 57 as part of a mounting structure 38 adapted to secure a GoPro brand camera. In operation a user will position stop 57 on mounting structure 38 through trial and error to find the best positioning angle of whatever device (e.g., light or POV camera) 39 be or she is using. Once that optimum positioning angle is determined, the user can then set and fix (preset) stop 57 to the correct location on mounting structure 38. Afterwards, a user can simply mount the selected device 39 to clip 1 and angle the device against stop 57 and be assured that the device in properly angled (according to the usual and customary way the user wears his or her hat) to best capture or illuminate the area in front of the user. Hence, deploying the accessory device on the clip can be performed repeatedly quick and easily.

As shown in the figures, clip may also include a thin (non-obscuring) tab 65. Tab 65 depends from second panel 3 and provides a vertical surface 67 (which may be angled as shown in the figures) upon which a user's thumb or finger can push against to remove clip 1 from brim 70. In a more preferred embodiment, clip 1 may include display tab 66 depending from panel 3. The embodiment clip shown in the figures includes both types of tabs 65 and 66, but the clip could include either tab individually. Tab 66 is designed not limitedly for removal of the clip, but to provide a mechanism by which the user can be alerted to one or more operational statuses of a mounted device. In this embodiment, vertical surface 67 of tab 66 may include one or more indicators (shown by way of example in the embodiment as lights) 68. One or more indicators 68 are part of an electronic receiving circuit (not shown) that is in wireless communication with device 39 (such as via wifi or Bluetooth signaling). The communication between the device and the receiving circuit of display tab 66 allows the one or more indicators to indicate to the user various statuses of the device. Such statuses could include the situation where the device: is recording, not recording or is running low on charge or battery power.

A clip constructed in accordance with the present invention is able to securely retain and position common accessory devices, including the heavier camera and light devices. The clip can be manufactured in a variety of sizes to accommodate different size hat brims. The clip may be made of a plastic, carbon fiber or metal base material. If plastic, the clip is preferably injection molded or 3D-printed from plastic. While the embodiments of the method and system of the present invention have been described herein, numerous modifications, alterations and changes to the described embodiments are possible without departing from the scope of the invention. The embodiments described herein are not intended to be limiting. 

1. A clip for mounting accessory devices on a hat brim, the clip comprising: a first panel and a second panel, the first and second panels respectively having a length, width, top surface, bottom surface, proximal end and distal end; the first panel and second panel each resiliently connected at their distal ends to a nose segment; the second panel having a wedge-shaped portion in which the width of the wedge-shaped portion increases from the distal end of the panel toward the proximal end of the panel; and the proximal end of the first panel including mounting structure having a configuration for receiving an accessory device.
 2. The clip of claim 1 wherein: a. the first panel and second panel have a spacing between them; and b. the spacing between the first panel and the second panel decreases as one moves from the distal ends of the panels to the proximal ends of the panels.
 3. The clip of claim 2 wherein the proximal end of the second panel contacts the first panel at a point on the bottom surface of the first panel.
 4. The clip of claim 4 wherein the contact point is before the proximal end of the first panel.
 5. The clip of claim 1 wherein the width of the second panel at its proximal end is 1.5 to 2.5 times the width of the first panel at its proximal end.
 6. The clip of claim 4 wherein the width of the second panel at its proximal end is 1.5 to 2.5 times the width of the first panel at its proximal end.
 7. The clip of claim 1 wherein the wedge-shaped portion of the second panel is formed by a pair of flaring side segments, each of which connects to a distal segment at an obtuse angle.
 8. The clip of claim 4 wherein the wedge-shaped portion of the second panel is formed by a pair of flaring side segments, each of which connects to a distal segment at an obtuse angle.
 9. The clip of claim 6 wherein the wedge-shaped portion of the second panel is formed by a pair of flaring side segments, each flaring side segment connects to a distal segment at an obtuse angle.
 10. The clip of claim 1 wherein the mounting structure includes a positioning stop allowing a user to preset a position of the accessory device on the clip.
 11. The clip of claim 6 wherein the mounting structure includes a positioning stop allowing a user to preset a position of the accessory device on the clip.
 12. The clip of claim 1 wherein the bottom surface of the first panel is concave.
 13. The clip of claim 4 wherein the bottom surface of the first panel is concave.
 14. The clip of claim 1 wherein the top surface of the second panel is convex.
 15. The clip of claim 4 wherein the bottom surface of the first panel is concave.
 16. The clip of claim 12 wherein the top surface of the second panel is convex.
 17. The clip of claim 1 further including a tab depending from the second panel and providing a vertical surface upon which a user's thumb or finger can push against to remove the clip from the hat brim.
 18. The clip of claim 1 further including a tab depending from the second panel; the tab having a vertical surface and the vertical surface of the tab including one or more indicators; and the one or more indicators being part of an electronic receiving circuit having means for wireless communication with the accessory device. 